Rainbow A Green Magenta Blue is a CBS premium pattern dichroic coating offered on thin glass COE 90. Rainbow A Green Magenta Blue fires to hot pink to blue rainbow colors. Rainbows are 1 inch stripes. This coating is offered on clear and black glass in a 4x4 inch square or a quarter sheet. There are approximately 66 square inches in a quarter sheet of glass. Please Note: All photos on black glass.